Norbert Scherer-Negenborn

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It has been observed previously that the number of iterations required to derive good model parameter values used by RANSAC-like model estimators is too optimistic. We present the derivation of an analytical formula that allows the calculation of the sufficient limit of iterations needed to obtain good parameter values with the prescribed probability for(More)
Fusion Engines in general have to handle manifold types of information from different sensors. In particular, in urban terrain such diverse sensor systems as e.g. electro-optical cameras, thermal cameras, small ground radars, acoustical sensors, and chemical, biological, radiological and nuclear (CBRN) sensors can contribute information. Several approaches(More)
A set of trackers operating on thermal video data is investigated. The contribution focuses on marine scenarios with ships that may perform maneuvers such as turning or occluding each other. The tracker methods are not original, and they are not improved here, only their parameters were adjusted in order to fit the scenario. This contribution focuses on the(More)
The detection of motion is an essential preprocessing step in many vision based systems. While showing good performance in the visible or the infrared spectrum, some of the state-of-the-art background subtraction methods are quite sensitive to a change in the spectral range. In this paper, the robustness of various background subtraction algorithms is not(More)
Underwater video-mosaics are an important tool e.g. for inspection of man-made infrastructure. Cameras may drift in rotation and distance to the surface while the mosaic will often be very much larger than a single frame resulting in long chains of planar homographies. This contribution addresses the problems arising from dead-reckoning drift in such(More)
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